Home / 87,556.79-120,834.25-48,800.64

Finding the Fourth Proportional to 87,556.79, 120,834.25 and 48,800.64

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Solution

The fourth proportional to 87,556.79, 120,834.25 and 48,800.64 is: 67,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,556.79 : 120,834.25 = 48,800.64 : x
  2. Step 2: Convert to fraction form
    87,556.79/120,834.25 = 48,800.64/x
  3. Step 3: Cross multiply
    87,556.79x = 120,834.25 × 48,800.64
  4. Step 4: Simplify right side
    87,556.79x = 5,896,788,489.92
  5. Step 5: Solve for x
    x = 5,896,788,489.92/87,556.79
  6. Step 6: Final answer
    x = 67,348.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.